Logitech Ultrathin Keyboard Cover

The good: The Ultrathin Keyboard Cover for iPad Air has an excellent, uncompromising keyboard and solid build quality, and it packs flat.

The bad: Lacks advanced case features like automatic Bluetooth pairing or multiple viewing angles; doesn't protect back of your iPad.

The cost: $80 to $125

The bottom line: The Logitech Ultrathin Keyboard Cover for iPad Air isn't quite as ultrathin-feeling as the original iPad cover, but it's still an excellent - if feature-minimal - Bluetooth keyboard accessory.

Belkin Ultimate Keyboard Case for iPad

Cnet rating: 4 stars out of 5

The good: This thin case has an excellent keyboard, automatically turns on and off, allows multiple viewing angles and offers solid protection.

The bad: It's unclear how the plastic construction will hold up over time.

The cost: $93 to $161

The bottom line: The Belkin Ultimate Keyboard Case might be the best way to turn your iPad into the closest thing to a laptop alternative, offering protection and not much bulk.

Logitech Ultrathin Keyboard Mini

Cnet rating: 3.5 stars out of 5

The good: The Ultrathin Keyboard Mini is slim, lightweight and matches up well with the iPad Mini, serving as a screen protector. While small, the keyboard itself has the best layout and design of any iPad Mini keyboard/case.

The bad: The keyboard is a bit cramped and the case protects only the front of your iPad, not the back.

The cost: $60 to $89

The bottom line: The Logitech Ultrathin Keyboard Mini is the best keyboard/case option available for the iPad Mini, but it still doesn't offer a great typing experience.

Apple Wireless Keyboard

Cnet rating: 3.5 stars out of 5

The good: It has an ultrathin profile and minimal footprint; Bluetooth pairing is simple; the top-row keys offer one-touch access to popular Mac features; and automatic shutoff conserves energy.

The bad: It lacks a number pad, and small keys may feel cramped for some users.

The cost: $56 to $236

The bottom line: Apple bundles its Wireless Keyboard with every new iMac because it matches the computer's strengths in terms of minimal design and simple function. While some may bemoan its lack of extra features, the Apple Wireless Keyboard does the job and looks good doing it.